Robust Reconfiguration of A Distribution System

Date
2017-01-04
Authors
Moradzadeh, Benyamin
Liu, Guodong
Tomsovic, Kevin
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Abstract
In this paper, a robust reconfiguration approach based on Mixed Integer Programming (MIP) is proposed to minimize loss in distribution systems. A Depth-First Search (DFS) algorithm to enumerate possible loops provides radiality constraint. This provides a general solution to the radiality constraint for distribution system reconfiguration/expansion problems. Still, imprecision and ambiguity in net loads, i.e., load minus renewable generation, due to lack of sufficient measurements and high utilization of demand response programs and renewable resources, creates challenges for effective reconfiguration. Deterministic optimization of reconfiguration may no lead to optimal/feasible results. Two methods to address these uncertainties are introduced in this paper: one, based on a stochastic MIP (SMIP) formulation and two, based on a fuzzy MIP (FMIP) formulation. Case studies demonstrate the robustness and efficiency of the proposed reconfiguration methods.
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Keywords
Distribution System Reconfiguration (DSR), Depth-First Search (DFS), Fuzzy Mixed Integer Programming (FMIP), Stochastic Mixed Integer Programming (SMIP).
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